Hi Peter,

I'm not sure why you can't use IDENTITY on that column. Having existing data wouldn't prevent you from doing that. Anyway, if you still want to use a separate table to store ID's, take a look at Re: Creating unique record ID's Message #901526.

>Ideally, I'd like to generate invoice numbers as an auto-incremented field where the seed value is stored in a table.
>
>On insert the value should be seed value + 1 and the seed value should be updated accordingly.
>
>I've tried a few things (and failed miserably) and would appreciate any ideas on the subject.
>
>Just in case you're wondering: I can't start from scratch with an auto-incremented field because of inherited data.
>
>TIA